From patchwork Fri Dec 20 04:17:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Finn Thain X-Patchwork-Id: 1213914 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=telegraphics.com.au Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47fG2j3HVwz9sPW for ; Fri, 20 Dec 2019 15:28:29 +1100 (AEDT) Received: from localhost ([::1]:50586 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ii9tr-0001TB-1W for incoming@patchwork.ozlabs.org; Thu, 19 Dec 2019 23:28:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59815) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ii9o1-0000c4-31 for qemu-devel@nongnu.org; Thu, 19 Dec 2019 23:22:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ii9nz-0003PB-JT for qemu-devel@nongnu.org; Thu, 19 Dec 2019 23:22:24 -0500 Received: from kvm5.telegraphics.com.au ([98.124.60.144]:34448) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ii9nz-00020K-9q; Thu, 19 Dec 2019 23:22:23 -0500 Received: by kvm5.telegraphics.com.au (Postfix, from userid 502) id DFF8B28D67; Thu, 19 Dec 2019 23:22:02 -0500 (EST) To: Jason Wang , qemu-devel@nongnu.org Message-Id: <1367b9572494f04722aebcf4b90d3ff31b935ab1.1576815466.git.fthain@telegraphics.com.au> In-Reply-To: References: From: Finn Thain Subject: [PATCH v2 12/13] dp8393x: Always update RRA pointers and sequence numbers Date: Fri, 20 Dec 2019 15:17:46 +1100 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 98.124.60.144 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , =?utf-8?q?Herv=C3=A9_?= =?utf-8?q?Poussineau?= , Laurent Vivier , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" These operations have to take place regardless of whether or not rx descriptors have been used up (that is, EOL flag was observed). Signed-off-by: Finn Thain --- hw/net/dp8393x.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 6b69cca329..bd92fa28f6 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -893,12 +893,14 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, /* Move to next descriptor */ s->regs[SONIC_CRDA] = s->regs[SONIC_LLFA]; s->regs[SONIC_ISR] |= SONIC_ISR_PKTRX; - s->regs[SONIC_RSC] = (s->regs[SONIC_RSC] & 0xff00) | (((s->regs[SONIC_RSC] & 0x00ff) + 1) & 0x00ff); + } - if (s->regs[SONIC_RCR] & SONIC_RCR_LPKT) { - /* Read next RRA */ - dp8393x_do_read_rra(s); - } + s->regs[SONIC_RSC] = (s->regs[SONIC_RSC] & 0xff00) | + ((s->regs[SONIC_RSC] + 1) & 0x00ff); + + if (s->regs[SONIC_RCR] & SONIC_RCR_LPKT) { + /* Read next RRA */ + dp8393x_do_read_rra(s); } /* Done */